Trolley.



J. S. MQGABEL.

TROLLEY.

APPLICATION FILED JANJ24, 1910.

986,842. e ed Mar. 14, 1 911.

2 SHEETS-SHEET 1.

WITNESSES mvsm'on I THE muzms PETERS co., WASHINGTON, D. c.

s. M'QOABE.

TROLLEY. APPLICATION FILED 111111.24, 1910.

2 SHEETS-SHEET 2.

Patented 11151 111911.

JOHN S. MCUABE, OF BRIDGEVILLE, PENNSYLVANIA.

TROLLEY.

seas-i2.

Specification of Letters Patent.

Patented Mar. 1 1,- 1911.

Application filed January 24, 1910. Serial No. 589,775.

T all whom it may concern:

Be it known that 1, JOHN S. MCOABE, a citizen of the United States ofAmerica, residing at Bridgeville. in the county of Allegheny and Stateof Pennsylvania, have in vented certain new and useful Improvements inTrolleys, of which the following is a; specification, reference beinghad therein to the accompanying drawing.

This invention relates to trolleys, and more particularly to trolleywheels and the harps thereof.

The primary object of my invention is to provide a trolley harp withpositive and re- .liable means for lubricating the trolley wheels, thusinsuring an easy movement of the wheel withln the harp and thereby reducing the wear and tear of the wheel spin-' dle or pin to a minimum.

A further object of this invention is to provide a trolley harp with alubricating reservoir, thereby obviating the necessity of dailylubricating the trolley wheel within the harp.

A still further object of this invention is to accomplish the aboveresults by a trolley that is simple in construction, durable and highlyefficient for the purposes for which it is intended.

With these and such other objects in view as may hereinafter appear, theinvention consists of the novel construction. combination andarrangement of parts to be hereinafter specifically described and thenclaimed.

Reference will now be had to the drawings forming part of thisspecification, wherein there is illustrated a preferred embodiment ofthe invention, but it is to be understood that the structural elementsthereof can be varied or changed, as to the size, shape and manner ofassemblage without departing from the spirit of the invention.

In the drawings :Figure 1 is a vertical sectional view of a trolleyconstructed in accordance with my invention, Fig. 2 is a similar viewshowing the trolley wheel in elevation, Fig. 3 is a verticallongitudinal sectional view of a portion of the trolley, Fig. 1 is aside elevation of the same, and Fig. 5 is a perspective view of one ofthe roller retaining plates.

In the accompanying drawings the reference numeral 1 denotes the upperend of a trolley pole and shrunk or otherwise mounted upon this pole ismy improved trolley harp,

comprising a sleeve 2 having the upper end thereof flared, as at 8 andformed integral with oval shaped side plates 4 and 5, these plates beingoppositely disposed. The plates 4 and 5 are provided with oppositelydisposed hexagonal openings 6 and 7 the axis of said openings beingremoved from the center of the plates 4 and 5, and the object of thiseccentric arrangement of said openings will presently appear. Theopenings 6 and 7 have the inner ends thereof terminating at annularseats 8 formed by cutting away the material bordering upon the innerends of said openings, and these seats are adapted to receive thecylindrical heads 9 of bearlugs 10 and 11 mounted in the openings 6 and7 respectively. These bearings are hexagonal in cross section to snuglyfit within the openings 6 and 7, and the bearing 10 has the outer end.thereof closed, as at 12 and said bearing is of a greater width thanthe bearing 11, the bearing 10 occupying the entire opening 6, while thebearing 11 simply occupies the inner half of the opening 7.

In the bearings 10 and 11 is mounted a cylindrical reservoir 13 havingone end thereof closed, as at 14 and provided with a central opening 15,while the opposite end of the reservoir has the inner walls thereofthreaded to receive the reduced exteriorly threaded shank 16 of a plug17, said plug being exteriorly screw threaded to receive a cap 18adapted to fit in the outer part of the opening 7 and retain the bearing11 in the inner part of said opening. The reservoir 13 has the lowerwalls thereof provided with openings 19, and communicating with theinterior of the reservoir is a recess 20 formed in the plug 17 The outerend of the plug 17 is provided with an opening 21 adapted tolongitudinally aline with the opening of the reservoir. The reduced endor the shank 16 of the plug is also provided with an opening 22 adaptedto register with one of the openings 19 formed in the bottom wall of thereservoir. In the reservoir and the recess of the plug 17 is placed anabsorbent material, as felt or waste 23 capable of holding a lubricantwithin the reservoir when the trolley is in active to allow thelubricant to pass through the openings 19, 15 and 21 as occasion mayrequire. The reservoir can be filled by removing the cap 18 andinjecting the lubricant through the opening 21, or the plug 17 the outertionally as a can beremoved, particularly when the parts of the wheelare disassembled.

I The outer side of the plate 4 has the material bordering upon theopening 6 reinforced by an annular enlargement 24, and the materialsurrounding the opening 7 at side of the plate 5 is reinforced byoppositely disposed enlargements 25, these enlargements having parallelextensions 26 providing oppositely disposed slots 27 adapted to receiveoppositely disposed arms 28, carried by thecap 18. The inner sides ofthe arms 28 are provided with protuberances 29 adapted to extend intorecesses 30 provided therefor in the outer face of the plate 5. The arms28 'are retained within the slots 27 with the protuberances 29 in therecesses 30 by transverse pins 31 extending through alining openingsprovided therefor in the extensions 26 and the arms 28. With the cap 18locked in position it is impossible for the bearings 10 and 11 to becomeaccidentally displaced.

The cylindrical reservoir 13 serves funcjournal pin and revolublymounted upon said pin 1s a bushing 32 fixed guide flanges thereof arewithin the hub of a trolley wheel 33. This trolley wheel is. of-a shapesimilar to wheels at present used, with theexception that the dispensedwith. In lieu of the guide flanges, I use a plurality of frusto-conicalshaped rollers 34 in connection with each one of the plates 4 and 5. Therollers 34 are carried by the confronting faces of the plates 4 and 5and are disposed ,of the lubricant reservoir 13. The rollers arefurthermore disposed whereby their lower edges will project from theinner sides of the plates 4' and 5 above the peripheral edges of thetrolley wheel 33, theserollers serving functionally as guide flanges fora trolley wire between the upper edgesof the plates 4 and 5. The reasonof eccentrically arranging the trolley wheel relatively to the plates 4and 5 is now ap arent. The rollers 34 have the upper spindles 35 thereofrevolubly mounted in openings 36 upon an are having for its centerthelongitudlnal axis in the upper edges of the plates 4 and 5, while thelower spindles 37 are revolubly mounted in sockets 38 provided thereforat the lower edges of the recesses 39 that receive the rollers. Therecesses 39 within the confronting faces of the plates 4 and 5 are of ashape to receive approximately one-half of each roller, and to retainthe lower spindles 37 within the sockets 38, retaining plates 40 aremounted in the inner sides of the plates 4 and 5. 40 are beveled, as at41 to engage in the lower edges of the recesses 42 provided for saidplates, and these beveled edges assist in preventing the plates frombecoming accidentally displaced. The plates 40 are sector shaped, asbest shown in Figs. 3 and 5 of the drawings.- I

Having now described my invention what I claim as new, is

In combination, a trolley harp having each of its arms provided with ahexagonal opening terminating at one end in a seat. bearings havingflanged heads extending in said seats and projecting in said openings,one of said bearings being closed at its outer end and the other of saidbearings being open from end to end and of less length than the closedbearing, a cap for closing one end of the shorter bearing, a cylindricalcasing constituting a lubricant containing reservoir extending in eachof said bearings and having reservoir abutting against the closed end ofthe elongated bearing, said reservoir provided with a plurality ofopenings, a ho]- low plug extending in the open end of said reservoirfor closing it, said plug open at one end and having its other endprovided with an aperture, said plug inclosed by said cap, and a trolleywheel mounted upon said casing and between the arms of the harp.

. In testimony whereof I afiix my signature in the presence of twowitnesses.

JOHN S. MoOABE. Witnesses KARL I-I. BUTLER, JOHN STEPI-IANY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' I Washington, D. C.

an open end, said

